President franklin roosevelt declared a five-day ""bank holiday"" to

Close banks temporarily and give them a chance to reopen in stronger conditions.

Explanation:

In March 6, 1933, Roosevelt declared a five-day national bank holiday. It was his second day as a president, but in the Hoover's era around 1,500 banks had closed each year. Roosevelt expected that with this break banks would reopen with better chances to survive.